Safe-lock



(No Model.)

J. G. HARRIS.

SAFE LOCK.

No. 407,775. Patented July 30, 1889.

(No Modei.) 3 Sheets-Sheet 2.

J 0'. HARRIS.

SAFE LOCK.

No. 407,775. PatentedJuly 30, 1889.

v FE .4

am Elia I (No Model.) I 3 Sheets8heet 3. r

J. O. HARRIS. I

SAFE LOCK.

No. 407,775. F g .6. Patented July 30, 1889.

N. PETERS Phmliflwgnphar, Walhingtnm DC.

1 JAMES C. HARRIS, OF DAYTON, OHIO, ASSIGNOR OF ONE-HALF TO AUGUSTUS G. BURTON, OF CHICAGO, ILLINOIS.

SAFE-LOCK.

SPECIFICATION forming part of Letters Patent No. 4072775, dated July 30, 1889.

Application filed December 30, 1886. Serial No. 222,991. (No model.)

To all whom, it may concern.-

Be it known that I, JAMES C. HARRIS, of Dayton, in the county of Montgomery and State of Ohio, have invented certain new and 5 useful Improvements in Safe-Locks; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to safe-locks of that class in which the lock-bolts are actuated solely by means located inside of the safe.

The object of the invention is to provide an I 5 improved actuating device for safe-locks of j; the character above described; and it consists in the matters hereinafter described, and

pointed out in the appended claims.

A safe-lock embodying my'invention enibraces as its main features of novelty a boltactuating device consisting of a motor or prime mover comprising a spring, weight, compressed air, or other source of power combined 1, with a train of gears applied to control the X speed of the prime mover, so that the same i will operate during an appreciable period of 1 time in moving the bolts instead of casting the bolts with a sudden motion or quick impulse. A main advantage gained by the em ployment of a train of gears in the manner described is that, in a lock embracing such train of gears, the bolts may be stopped at the termination of their movementwithout any shock or jar, such as is produced by the sudv 3 5 den stoppage of the rapidly-moving bolts and 2' connected parts in prior devices in which the bolts are cast or retracted by quickly-acting f weights or springs. In an actuating device 7 or motor embodying my invention, such de- 40 vice will usually include some means for controlling the train of gears which may, for instance, consist of a rotating fan or clock escapement. 1 Several different forms of spring-motors embodying my invention-are illustrated and de scribed in the following specification, and certain preferred details of construction in one x of the motors shown are herein specifically claimed as part of my invention.

In the accompanying drawings, which illustrate my invention, Figure 1 is a view in ele vation of the inner side of a safe-door illustrating the bolt-works and clock-work device for actuating the said bolts. Fig. 2 is aborizontal section illustrating the parts shown in Fig. 1, taken upon line 0: cc of said figure. Fig. 3 is a detail section taken upon line y y of Fig. 1. Fig. 4 is a View illustrating coiled springs and a train of gears applied for moving the bolts, together with acent-rifu gal brake 6o device for controlling the movement of the bolts under the action of the drivingmechanism. Fig. 5 is asectional view of the centrifugal brake device illustrated in Fig. 4, said section being taken upon line ac 00 of said Fig. 4E. Fig. 6 is a view in elevation of the inner side of a safe-door, showing a spring-actuating device, together with a dash-pot applied for retarding the movement of the bolts under the action of the said actuating device. Fig. 7 is a detail sectional view taken upon line 00 0c of Fig. 8. Fig. 8 is a detail section taken upon line 00 0c of Fig. 6. Fig. 9 illustrates a spring-actuating device constructed in the same manner as that shown in Fig. 4:, together 7 5 with a train of gears and an escapement applied for controlling the movement-s of the springs.

As illustrated in the several figures of the drawings, A indicates the safe-door, provided 8c with the usual vertical bars A A, and with bolts B B, arranged horizontally and constructed to slide in the said bars A A.

13 indicates a vertical carrier-bar attached to the bolts B B and affording means for communicating motion from the actuating devices to the said bolts.

O indicates as a whole a time mechanismemployed to control the movement of the bolt-actuating devices.

As shown in Figs. 1, 2, and 3, D is a box or case provided with flanges cl, through which screws are inserted for attaching it to the safe-door, and within which is placed an actuating device or motor, consisting of coiled 5 springs and gearing for moving the bolts.

E is the main or spring arbor of the motor, about which is'placed one or more coiled actuating-springs E E. Upon said arbor E is mounted a gear-wheel E through the medium I00 of which motion is transmitted to a train of gears consisting of gear-wheels F F F F and end of the arbor G3 which extends pinions f f f f, mounted on arbors G G G G The said severalarbors are in the construction illustrated provided with bearings in plates H H, secured within the case D in any suitable manner.

G is an arbor provided with a pinion f, which intermeshes with the gear-wheel F of the train most remote from the spring-arbor, said arbor Gr being provided with a fan G, by which rotation of the train and the arbor E, under the action of the springs E E, is controlled in a familiar manner. Upon the outside of the plate H, is attached an arm g, adapted for engagement with a movable stop controlled by the time mechanism, whereby the train may be held from rotation under the action of the springs and released at a desired time to permit the actuation of the bolts, as will hereinafter fully appear.

Upon the outer end of the arbor E is mounted a pinion E which intermeshes with a gear-wheel E mounted upon a shaft EZwhich, as herein shown, has bearings in the plate H, and in a second plate H attached to the said plate H, exterior to the latter. To permit the winding of the springs without turning the pinion E and gear-wheel E the usual pawl-and-ratchet connection is formed between the said pinion and gear-wheel and the arbor E. Said gear-wheel and pinion are herein shown as rigidly connected by means of a sleeve e, surrounding the arbor -E and passing through the plate H, a single ratchet 6 upon the arbor, and a pawl 6 upon 'the wheel E thus serving to connect both the wheel and pinion with the arbor.

Upon the shaft E outside of the plate H is attached a crank E", the crank-pin e of which engages a connecting rod or bar E the opposite end of which rod is pivotally connected with the bolt-carrying bar B by means ofa stud b, fixed to said bar, the parts being so arranged that in the operation of the device the bolts are cast by a half-revolution of the crank E, and are retracted by a second half-revolution of the said crank.

,It is obviously desirable, in the employment of a time mechanism for moving at a desired time the stop or detent by which the bolt-actuating devices are held from movement, that the partof the actuating device which is immediately engaged with the said stop or detent should act thereon. with relatively little force or pressure, inasmuch as the time mechanism, as usually made, acts with little force, so that the accuracy of its operation is liable to be interfered with, if

the exertion of any considerable power is required for releasing the bolt-actuating devices. For this reason-I have herein shown the actuating devices above described, com prising coiled springs and a train of gears, asprovided with the arm g, attached to one of thearbors of the train which is remote from the spring, and which, therefore, is

. moved with little power, and. I arrange the stop or detent which is actuated by the time mechanism in position to engage said arm, so as to hold the latter from rotation and to thereby restrain the motor from action. In a device thus made a very slight exertion of power by the time mechanism will obviously serve to move the detent and release the said arm g.

In an actuating device of the particular character above set forth, in which the bolts are cast in locking the safe by a half-revolution of a crank E actuated by the same springs by which the bolts are retracted,it is obviously necessary, in case the arbor to which the arm 9 is connected is geared directly with the crank-shaft, that the said arm 9 should be allowed to freely revolve while the bolts are being moved for locking the safe, and that when the bolts are cast the said arm should come into engagement with the detent, and should be held from movement thereby until said detent is moved by the time mechanism for opening the safe. To this end I have herein shown a detent for engaging the said arm g, which detent is adapted for actuation by the time mechanism, and also by an automatic device con trolled by a moving part of the motor itself .and operating to throw the detent into the path of the said' arm 9 at the moment the crank E has completed the first half of its revolution so as to arrest the movement of the motor at such time.

A detent controlled both by the time mechanism and by the bolt-actuating mechanism, and operating in the manner described, may obviously be constructed and applied in a number of different ways. One desirable construction of such a detent and the devices for actuating it is herein shown and constructed as follows: I

I is a detent-lever pivoted at 4 upon the plate H of the device at a pointbetween its ends. One end 1" of said leveris constructed to rest upon a cam I, fixed to the crank-shaft E and the other end i of said lever I is provided with a shoulder t adapted to engage the said revolving arm g. A spring I is applied to the said lever I in such manner as to throw the end 1' thereof toward the revolving arm g, and to press the arm 2" of the lever against the cam 1. Means actuated by the time mechanism are employed for moving the arm 2' of the lever I in a direction to release said lever from the revolving arm g, the devices for this purpose herein shown consisting of a bell-crank lever 1 pivoted to the case D, and provided with an arm 1' engaging the lever I, and with a vertical arm 2' which is connected by means of a horizontal pitmanI? with the swinging arm 0 of the time mechanism C. The cam I is provided with a raised part or prominent surface 1 preferably concentric with the axis of the shaft and extending through one-half the circumference of the cam. Said surface I is so arranged that when the end i of the lever I is engaged therewith the opposite end of the said lever will be free from the revolving arm 9, so as to allow the latter to freely revolve. The depressed or cut-away part of the said cam is arranged to allow the said end 2" of the lever to drop inwardly under the action of the spring 1 and thereby allow the engagement of the shoulder 2' with the arm g, so as to stop the movement of t-helatter. The ends of the cam-surface I are furthermore so arranged that the lever I remains in engagement with said cam-surface during the time the crank is making its half-revolution by which the bolts are cast. It follows that after the mechanism is put in motion and during the time the bolts are being castthe endrl of the lever I will slide on the part I of the cam, which will hold said lever free from the arm g and allow free movement of the train. As soon, however, as the crank-shaft has completed ahalf-rotation and the lever is released from the part I of the cam, said end of the lever will be allowed to fall inward under the action of the spring I, and the shoulder 11 of the said lever will at the same time be thrown into the path of the revolving arm g, and thereby stop the movement of the train. Af-

ter this has occurred the parts will obviously remain in the same position until the time is reached at which the time mechanism is set for operation, when the arm 4? of the detentlever I will be moved and the arm 9 released.

For the purpose of arresting the movement of the crank E at the termination of its second half-revolution by which the bolts are retracted, I have herein shown a movable stop ated by a spring 7L, operating to throw the said stop into the path of the spur 6 so that the stop will stand normally in position to engage the spur.

In the particular construction illustrated the stop H is provided with a stem H in the plate H and provided with a knob or handle h, the spring It being of spiral form and placed around the stem H between the plate and the main part of the top.

In automatic bolt-actuating devices of the general character herein shown means are obviously necessary to prevent the bolts being cast before the door is closed, while insuring the engagement of said bolts with the jamb shortly thereafter, and in connection with the motor described any one of several different kinds of devices may be employed for this purposeas, for instance, a wellknown device may be used embracing a detent for holding the bolts from movement after the actuating device has been set for operation, and an automatic trip device, acting by contact with a part of the safe in closing the door for releasing the said detent. Another device that may be used embracesa detent similarly applied, and a clock-work acting to release the detent after the door is closed, a device of this kind being shown in a prior application forpatent, Serial No. 218,860,1iled by me in the United States Patent Office November 15, 1886.

In a device of the character herein described, in which the bolts are cast by the action of the same mechanism by which they are retracted, the parts may be so made that suffi ient time will be afforded in which to close the door after the motor has been started and before the bolts have been advanced far enough to engage the safe-jamb. As one simple way of constructing the parts for this purpose, the throw of the crank E and of the bolts may be made somewhat greater than necessary for the engagement of the bolts with the bolt-recesses of the jamb, so that the bolts will have a short distance to move before they come in position to strike the jamb,

thus affording time to close the door during the first part of the movement of the bolts. Another, and for some reasons a preferable way of accomplishing the end above stated is to make the throw of the said crank greater than that necessary to move the bolts and to provide a certain amount of lost motion between the said crank and the bolts, so that the device may run and the crank turn some distance before the bolts are moved. The necessary amount of 10st motion may obviously be provided by making an aperture at b for the stud l), by which the connectingrod E is connected with the carrying-bar, slightly elongated in the manner illustrated in dotted lines in Fig. 1 of the drawings.

In looking the safe, when the lock is provided with the several features above set forth and shown in Figs. 1, 2, and 3, the

springs are wound, and, the door being in readiness for closing, the stop II is then drawn out to allow the motor to move, and the door is then immediately shut. Inasmuch as the motion given to the bolts during the first part of the movement of the crank will be very slight, sufficient time will usually be given for closing the door before the bolts are advanced so as to strike the jamb, even when there is no provision for lost motion between the bolts and the crank; but if more ample time is required lost motion may be provided by making a sliding connection in the parts, either in the manner shown or otherwise.

In Figs. 4 and 5 I have shown another device embracing the general principles of my invention, in which a frictional retarding device is employed in connection with an automatic bolt-actuating mechanism of the kind shown and described in the said prior application for patent, No. 218,860. In this instance .I is a case bolted to the safe-door and containing a springactuating mechanism comprising a sliding plate J, connected with a plate B attached to the carrying-bar B by means of a stem 3', a set of coiled springs J 2 J by which said plate is actuated for easting the bolts, and a rotating disk J attached to a pinion engaging a rack-bar upon the plate J, these partsbeing arranged and constructed to operate in the same manner as the similar parts shown in said prior application. The release of the springs at the desired time is controlled by a time mechanism 0, actuating through the medium of an arm 0 a connecting-rod c, and a stop j, which engages a pivoted lever j which holds from rotation the .disk j in the manner set forth in said application.

The devices for retarding or controlling the movements of the bolt-s under the action of the actuating-springs illustrated in said Figs. 4 and 5 are as follows: K is a horizontal rack-bar fixed to the carrying-bar B of the bolt-work and engaging a pinion K, which is attached to a gear-wheel K mounted upon the safe-door in a manner clearly shown in' Fig. 5. Said gear-Wheel K intermeshes with a gear-pinion L, which is mounted upon a shaft L, provided with two or more radial arms L L Levers L L are pivoted to the outerends of said arms, and each of said levers is provided at one end with a weight L and at its opposite end with a brake-shoe L constructed to act upon a cylindric surface L formed upon a stationary projecting part attached to the safe-door. In the operation of this device the rotary motion given to the shaft L, through the medium of the rackbar and gears described, tends to throw the said weights L outwardly and to thereby press the brake-shoes L L against the projection L The greater the speed of rotation in the said shaft L and connected parts the more forcibly will the brake-shoes be pressedagainst the said cylindric surface L ,-so that when a certain speed in the parts is reached the frictional engagement of the brake-shoeswill check the rotary movement of the parts, and

thereby control the speed at which the said this case consisting of a coiled spring or' springs applied to move the bolts andcontrolled by a train of gears, together with a time mechanism arranged in the same manner as set forth in the form of the device first described. The movement of the bolts under the action of the springs is in this instance controlled by means of a device consisting of a cylinder provided with a piston, and containing oil or other fluid adapted to pass through a small aperture from one side of the piston to the other as thelatter is moved in the cylinder, with the effect of limiting the speed of movement of one of the two parts with which the cylinder and piston are connected with relation to the other part, such device being commonly known as a dash-pot.

The boltactuating device illustrated in said Fig. 6 differs from that shown in Figs. 1 and 2 in some respects, as will appear from the following: As shown in said Fig. 6, M is a spring-arbor, and M a coiled actuatingspring. The said spring-arbor is provided with a pinion M inter-meshing with a gearwheel M which gear-wheel is mounted upon a shaft M to the outer end of which is attached a crank-arm M connectedwith the carrying-bar B of the bolt-works by a connecting-bar M in the same manner as in the construction shown in Figs. 1 and 2.

The connection between the driving-spring and the train of gears interposed between the springs and the time mechanism is in this case made through the medium of the shaft 1W instead of directly from the spring-arbor, as is the case in the device shown in Figs. 1 and 2. For this purpose a gear-wheel N is mounted upon the said shaft M and said gear-wheel intermeshes with a pinion n, belonging to a train of gears consisting of pinions "n. n, and a gear-wheel N, which are mounted upon arbors N N The arbor N is provided with a radial arm n adapted for engagement with a hooked detent 0, herein shown as formed upon the lower end of a lever 0, which lever is connected at its upper end by means of a connecting-rod O with the swinging arm 0 of the time mechanism 0. In this instance the train of gears, instead of being permanently connected with the crankshaft or spring-arbor, is connected therewith through the medium of an automatically-act ing clutch device adapted to maintain the train disconnected from the crank-shaft during the half-rotation of the latter by which the bolts are cast and to cause the engagement of the said shaft with the train of gears at the termination of the half-rotation of said shaft by which the safe is locked. By the employment of a device of this kind the arm a may obviously be engaged with the detent 0 before the door is closed, and said arm and the train will remain immovable during the casting of the bolts. The actuating device will, however, be held from movement when the door is locked solely by the engagement of said arm n with the detent, so that when the detent is moved by the time mechanism the wheels of the train and the crank-shaft will be allowed to turn to accomplish the retraction of the bolts.

One desirable form of an automaticallyacting clutch device adapted for the purpose described is herein shown, and is made as follows: Upon the inner or under surface of the plate P, by which bearing is afforded for the outer ends of the several arbors, is formed a cam-groove 1), consisting of two concentric parts 19 19 one 19 of said parts being arranged at a greater distance from the axis of rotation IIO of the shaft M than the other part f. Upon the said shaft M adjacent to the said plate P and the cam-groove, is fixed a short radial arm m, to the outer end of which is pivoted a swinging lever m, having upon it a pin m which engages the cam-groove p. The said lever m is also provided at its side opposite that to which the pin m is affixed with a projection m arranged to move in proximity to the adjacent surface of the gear-wheel N, and constructed for engagement with either one of the two projections or studs n a affixed to the said wheel N. The said lever m is arranged to pass freely inside of the said projections of when the said lever is atthe inner limit of its movement, and to engage one of the said projections and thereby move the said gear-wheel N during the time the said lever is at the outward limit of its movement.

The parts 19' p of the cam-groove 29 are so arranged that the pin m of the lever m will engage the part 1) of the cam-groove remote from the shaft at the time the bolts are being retracted, and will similarly engage the part 19 of the cam-groove nearest the said shaft at the time the bolts are being cast. The cam-groove p is furthermore so arranged that at the beginning of the half-rotation of the shaft by which the bolts are cast, the said 1ever m will be free from the wheel N, so that the shaft may turn freely without moving the wheel. At the end of the half-rotation of the shaft by which the holes are cast, however, the said lever 'm is thrown outwardly by the cam-groove, and is thereby caused to engage one of the projections 02 upon the said wheel N, thereby arresting the further movement of the shaft; the rotation of the said wheel N at this time of course being prevented by the engagement of the arm n with the detent 0. 'When the time is reached for opening the safe, the said detent will be moved by the time mechanism and the arm 01, released, when the train of gears will be allowed to move, thereby permitting the rotation of the said wheel N under the action of the pin m which presses against the projection 02 in the manner above described. The rotation of the said shaft will continue until it has made a half-rotation and thereby moved the bolts to unlock the safe, when the lever m upon the shaft will again be shifted by the action of the camgroove, so as to release the gear-wheel N. This movement of the said lever m is preferably arranged to take place at the moment before the rotary movement of the shaft is arrested by the action of a stop or detent H which is arranged for the purpose of stopping the movement of the parts after the bolts have been retracted, in the same manner as set forth in the form of the device first above described. By this arrangement of the parts it is entirely obvious that the said lever m will be in position to allow the free movement of the shaft M at the beginning of the next initial half-rotation of the said shaft.

I have shown in said Fig. 6 a dash-pot,which consists of a cylinder Q, affixed to the inner surface of the safe-door, and a piston Q, which is attached to a piston-rod Q which passes through one end of the said cylinder Q, and is attached at its opposite end to the carrier-bar B, by which the bolts B are moved. The opposite ends of the said cylinder Q are connected by means of a small passage q, desirably provided with a valve g, by means of which the flow of fluid through the said passage may be regulated. The said cylinder Q is entirely closed and is filled at both ends with a fluid, preferably a non-congealable fluid, such as oil or glycerine. The speed at which the piston can move in the cylinder in this construction is obviously limited by the quantity of fluid which can pass in a given time through the said passage q. Said cylinder and. piston, arranged as above described, obviously operate to retard the movement of the bolts under the action of the springs, both in casting and retracting the said bolts, thereby affording a simple an ineX- pensive device for this purpose. It will of course be understood that the passage for the flow of fluid from one end to the other of the cylinder may be'made otherwise than through the walls of thecylinder-as, for instance, a passage may be formed through the piston itself for this purpose. The dash-pot applied to limitthe speed of movement of the bolts is not specifically hereinclaimed as part of my invention, inasmuch as said dash-pot is the invention of another; but said dash-pot is illustrated merely as showing one practicable means of carrying out the broad features of my invention.

In Fig. 9 is illustrated another way in which a train of gears provided with a rotating fan or other escapement may be employed in connection with a bolt-actuating device of the kind heretofore used and shown in said prior application, No. 218,860, for retarding the movement of the bolts under the action of the springs, by which, in this form of actuating device, the bolts are retracted.

R in said Fig. 9 indicates the casing of a bolt-actuatin g device; R, a sliding plate within said casing, which is actuated for casting the bolts by the set of springs indicated by R R and R is a rotating disk to which is affixed a pinion engaged by a rack-bar attached to the said plate R, as clearly indicated in dotted lines in the drawings. a The disk R is held from rotation by a lever R engaged by a movable stop R adapted for actuation by a time mechanism for the purpose of releasing the said disk and. allowing the springs to expand, and thereby move the plate R (which is connected with the bolt-work) in the manner fully set forth in said prior application. To the said disk R is attached a gear-wheel S, which intermeshes with a pinion 3, fixed to the arbor s of a second gearwheel S, and said gear-wheel S intermeshes with a second pinion 8 attached to a gearwvheel S which is affixed to an arbor s and S to which are attached fan-blades s .9

intermeshes with a pinion .9 upon an arbor The rotary motion of the disk R being transmitted through the train of gears described to the fan, the latter operates in a well-known manner to check the speed of rotation of the said disk, and to thereby retard the movement of the plate R and the bolts.

To enable the disk R to be freely turned for compressing the springs, the gear-wheel S is preferably mounted to rotate upon the disk R and connected therewith by means of a pawl and ratchet in the manner shown.

It will be observed that I have illustrated in the accompanying drawings two classes of devices, one in which. the retarding devices are employed directly in connection with the means for actuating the bolts, as shown in Figs. 1 and 9, and the other in which the said retarding devices are applied to the bolts themselves, or to a moving part connected therewith, as shown in Figs. 4 and 6, and as far as the detent by which the looking or unlocking is controlled the saidretarding devices may be applied in either of the ways stated, the general result being the same in either case. Inasmuch as I am, as far as I am aware, the first to employ a continuously-acting means, comprising a weight, spring, or other prime mover combined with a train of gears or equivalent mechanism for causing a gradual expenditure of the energy exerted by the prime mover, and herein denominated a motor, together with a detent acting on a part of the train remote from the actuating spring or weight, this construction is herein broadly claimed as my invention.

I claim as my invention 1. The combination, with the bolts of a safe, of a motor applied to actuate the said bolts, said motor comprising a spring, weight, or other prime mover, and a train of gears for retarding the action of said prime mover and the bolt-work, substantially as described.

2. The combination, with the bolts of a safe, of a motor applied to actuate the said bolts, said motor comprising a spring, weight, or other prime mover, a train of gears, and an escape device for retarding the action of the said prime mover and bolt-work, substantially as described.

3. The combination, with the bolts of a safe, of a motor applied to actuate the said bolts, said motor comprising a spring, a train of gears, and an escape device connected with and actuated by a rotating part of the of a rotating part or crank connected with the i said bolts for casting and retracting the latter, a spring applied to actuate said rotating part, a train of gears connected with the said rotating part, a detent engaging a part which is moved by the train of gears for holding the latter and the said rotating part from movement, and automatically-acting means controlled by the movement of the said rotating part for actuating said detent to stop the train when the bolts are cast, and means acting upon the detent for releasing the train to retract the bolts, substantially as described.

'7. The combination, with the bolts of asafe, of arotating part or crank connected with the bolts for actuating the latter, a spring ap plied to move the said rotating part, a train of gears connected with the said rotating part, a rotating arm g, actuated by one of the gears of the train remote from the spring, a pivoted detent-lever I, adapted for engagement with said arm g, a cam connected with the said rotating part and having operative connection with said detent-lever, and means for actuating said detent-lever for releasing the arm. g in opening the safe, substantially as described.

8. The combination, with the bolts of asafe, ofa rotating part or crank connected with the bolts for casting and retracting the latter, a spring applied to actuate said rotating part, a train of gears connected with and moved by the said rotating part, a rotating fan or other escape device for controlling the movement of said train of gears, a revolving arm 9, actuated by one of the arbors of the train remote from the spring, a detent engaging the said arm g, and a time mechanism actuating said detent, substantially as described.

9. The combination, with the bolts of a safe, of an actuating device therefor, consisting of coiled spring or springs, a pinion upon the spring-shaft, a gear-wheel intermeshing with said pinion and carrying a crank, means connecting said crank with the safe-bolts, and means for retarding the motion of said bolts under the action of the spring or springs, substantially as described. 1

10. The combination, with a shaft E and the spring actuating said shaft, of a cam 1 upon the shaft, a pivoted detent-lever I, a

train of gears connected with the shaft, a revolving arm 9 upon an arbor belonging to the train, a spring holding said detent-lever in position to engage the said arm g, and a time In testimony that I claim the foregoing as mechanism applied to move said detent-lever, my invention I affix my signature in presence Io substantially as described. of two witnesses.

11. The combination of the bolts of a safe and a spring or other motor actuating said bolts, said bolts having a throw greater than \Vitnesses:

necessary to free them from the jamb, sub- S. BOLTIN,

stantially as described. J. O. PATTERSON.

JAMES c. HARRIS. 

